<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The amount of productive foliage was assessed with the help of the relative significance of each annual needle set in their contribution to the growth of young Scots pines (<italic>Pinus sylvestris</italic>). The number of needles in the subsequent needle sets was studied retrospectively in twelve-year-old stand, and the worst needle loss years were detected. The growth rate of trees was compared with the number of needles in the annual needle sets and with the loss of needles from the assessed productive foliage. Needles in the 4<sup>th</sup> and older needle sets remaining in the trees were interpreted as useless or less important if their amount did not correlate with the growth. The second and third needle sets supported both radial and height growth. Most variation in the needle loss during 1999-2002, caused mainly by summer drought and by fungal needle cast due to <italic>Lophodermium seditiosum</italic>, occurred in the third annual needle set. Decrease in both radial and height increments in relation to the needle loss were apparent in the total material for 1997-2004, but needle loss reduced the annual growth significantly only in two-three years inside that period.</p></abstract>

Finnish Forest Research Institute, Vantaa Research Unit, PO Box 18, FIN-01301 Vantaa, Finland

Institute of Forestry and Rural Engineering, Estonian University of Life Sciences, F. R. Kreutzwaldi 5, 51014 Tartu, Estonia

Finnish Forest Research Institute, Suonenjoki Research Unit, Juntintie 154, FIN-77600 Suonenjoki, Finland

Growth response of young Scots pines to needle loss assessed from productive foliage

Institute of Forestry and Rural Engineering, Estonian University of Life Sciences, Kreutzwaldi 5, 51014 Tartu, Estonia

Centre of Forest Protection and Silviculture, Rõõmu tee 2, 51013 Tartu, Estonia

The first reported outbreak of the great web-spinning pine-sawfly, <italic>Acantholyda posticalis</italic> (Mats.) (Hymenoptera, Pamphiliidae), in Estonia

Department of Botany, Institute of Ecology and Earth Sciences, Lai St. 40, 51005 Tartu, Estonia

Department of Geography, Institute of Ecology and Earth Sciences, Vanemuise St. 46, 51014 Tartu, Estonia

Alvar forest of Harjumaa district

New woodland beetle species (Coleoptera) in Estonian fauna

Growth Differences in the Progeny Trials of the Scots Pine (<italic>Pinus sylvestris</italic> L.)

Factors influencing the species composition and richness of herb layer in old boreo-nemoral forests

Forest development on Kihnu Island and the role of the human factor in it

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Forestry Studies

 Forestry Studies | Metsanduslikud Uurimused is a peer-reviewed journal managed by the Institute of Forestry and Rural Engineering, Estonian University of Life Sciences. The journal publishes original research articles, reviews, technical reports and short communications. Papers are published in English or Estonian with English summary. Authors whose mother tongue is not English are strongly urged to have their manuscripts reviewed linguistically before submission. Submission of an article is understood to imply that the article is original and is not being considered for publication elsewhere. Manuscripts generally should not exceed 25 one-sided 1.5-spaced printed pages, including tables, illustrations, references and abstract. Reviews must not exceed 20 pages, technical reports 5 pages. The authors should aim to submit their work as concisely as possible and longer papers will be accepted under exceptional circumstances. Suitable manuscripts are considered by at least two independent referees before acceptance.   Why subscribe and read   the journal publishes research papers on all aspects of forestry (silviculture, dendrology, tree physiology and genetics, forest products, forest operation and techniques, forest economics and policy, etc.), and also close subjects (environmental protection, ecology, botany, zoology, entomology, pathology, soil science, etc.),  the journal is published twice a year in paper and electronic versions,  peer reviewed journal by experts from Europe and US,  publishing history since 1939.   Why submit   submissions accepted in a wide range of categories: original research articles, reviews, technical reports and short communications,  rapid review (by two independent referees) and fast editing process,  coverage by major abstracting and indexing services,  publishing without charge,  accessibility through MetaPress platform.   Archiving  Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 

Forestry Studies

Volume 50 (2009): Issue 2009 (June 2009)

Growth response of young Scots pines to needle loss assessed from productive foliage

The first reported outbreak of the great web-spinning pine-sawfly, Acantholyda posticalis (Mats.) (Hymenoptera, Pamphiliidae), in Estonia

Alvar forest of Harjumaa district

New woodland beetle species (Coleoptera) in Estonian fauna

Growth Differences in the Progeny Trials of the Scots Pine (Pinus sylvestris L.)

Factors influencing the species composition and richness of herb layer in old boreo-nemoral forests

Forest development on Kihnu Island and the role of the human factor in it

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